Hungary and Serbia must cooperate to protect their borders, the security of their citizens and their cultural identity, Prime Minister Viktor Orban said after a Hungarian-Serbian government meeting in Budapest on Friday. At the press conference, held together with Serbian Prime Minister Ana Brnabic, Orban thanked Serbia for its help in stemming migration along Hungary's southern borders. If needed, Hungary will also help Serbia with border controls in the south, he added. Orban also said that the four Visegrad Group countries -- Hungary, Czech Republic, Poland and Slovakia -- were urging Serbia's European Union integration.